Daikin Altherma 3 R F Installer's Reference Manual page 182

13 | Troubleshooting
Installer reference guide
182
Error code Detailed error code Description
U5 00
U8 01
U8 02
U8 03
UA 00
UA 21
UA 22
INFORMATION
Error AJ-03 is reset automatically from the moment there is a normal tank heat-up.
INFORMATION
If the unit detects flow when the pump is not running, an external device might be
causing flow, or there might be something wrong with the flow measuring devices
(flow sensor and flow switch).
▪
If the flow sensor detects flow when the pump is not running, the unit will stop
operation and the user interface will display error C0‑00. For the unit to resume
operation, this error needs to be reset manually.
▪
If the flow switch detects flow when the pump is not running, the unit will
temporarily stop operation and the user interface will display error C0‑01. After
some time, the error will reset automatically and the unit will resume operation.
If the problem persists, the unit will stop operation and the user interface will
display error C0‑02. For the unit to resume operation, this error needs to be reset
manually.
INFORMATION
In case of error code AH and no interruption of the disinfection function occurred
due to domestic hot water tapping, following actions are recommended:
▪
When the Reheat only or Schedule + reheat mode is selected, it is
recommended to program the start-up of the disinfection function at least
4 hours later than the last expected large hot water tapping. This start-up can be
set by installer settings (disinfection function).
▪
When the Schedule only mode is selected, it is recommended to program an
Eco action 3 hours before the scheduled start-up of the disinfection function to
preheat the tank.
NOTICE
When the minimum water flow is lower than described in the table below, the unit
will temporarily stop operation and the user interface will display error 7H‑01. After
some time, this error will reset automatically and the unit will resume operation.
User interface
communication problem.
Connection with adapter lost
Please contact your dealer.
Connection with room thermostat lost.
No connection with room thermostat.
Indoor unit, outdoor unit
matching problem.
Power reset required.
Extension/hydro mismatch problem.
Extension/hydro mismatch problem.
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10